text: The Guide to PHARMACOLOGY was initially made available online in December 2011 with additional material released in July 2012. Maintained by a team of curators based at the University of Edinburgh, the Guide to PHARMACOLOGY is developed by an international network of contributors, including the editors of the Concise Guide to PHARMACOLOGY. As with the original IUPHAR-DB, the International Union of Basic and Clinical Pharmacology (IUPHAR) Committee on Receptor Nomenclature and Drug Classification  (NC-IUPHAR), acts as the scientific advisory and editorial board for the database. Its network of over 500 specialist advisors (organized into ~90 subcommittees) contribute expertise and data. The current PI and Grant holder of the GtoPdb project is Prof. Jamie A. Davies. The development and release of the first version of the GtoPdb in 2012 were described in an editorial published in the British Journal of Pharmacology entitled Guide to Pharmacology.org- an update. The IUPHAR-DB is no longer being developed and all the information contained within this site is now available through the Guide to PHARMACOLOGY (IUPHAR-DB links should now re-direct).